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MAGHvINE FOR MAKING AND' 4REPAIRING ROADS. No. 567,293. PatentedSept.8,1896.

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110.1561293... Patented sept. 8, 1896.

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M. e. BUNNELL e e. e. mee. MAHNE FOR MAKINGAND REPAIRING ROADS.

No. 567,293.l l `.Pa.tented Sept. 8,

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MOETCN'GQBNNELL ANDCHAELES G. PAGE, oF CHICAGO, ILLInoIs, AssIGNoRs ToFREDERICK C. AUsTIN, oF sAME PLACE.v

'MACHINE FoR MAKING AND FEPAIRING ROADS.

SPECIFICATION forming part or Ilettr Patent tratemos, dated september s,1896.

Applioation filed January 13 1896i. Serial No.- 575,270. (No model.)

To all whom it may concern: Y the axle may be swung about its pivotalconv Be it known that we, MORT-ON G. BUNNELL nection irrespective of theposition of the viand CHARLES G.A PAGE,'citizens of the United bratorybearing with reference to the body- States, residing at Chicago, in thecounty of frame of the machine; the vibratory holder, 55 5v Cook andState of-.Illinois, have invented cerand consequently the axle, may beshifted tain Vnew and useful Improvements in Mafrom side to side of thebody-frame to any chines for Making and Repairing Roads, of desiredextent, irrespective of the inclination which the following is' arspecification. to which the axle may at that time be ad- Our inventionrelates to road-working maj usted; and inasmuch as said holder may be 6oIo chines of the kind in which a long diagonallyconnected to the axle ator near its middle disposed scraper-bladeisV arranged between point thevarious end adjustments of the latthe front and rear wheels of abody-frame or ter may be obtained without moving its pivcarriage havingmeans for supporting and otal point far from the middle of thebodyadjusting said scraper-blade, and having the frame,'which admits ofa more easy and eX- 6 5 j I5 rear axle arranged for adjustmentrelatively peditious swinging adjustment of the axle to the body-frame.than if its pivotal point were at one side of Prominent objects of ourinvention are to the machine. provide'for greater range of adjustment onVToV this end our invention consists in prothe part of the rear axleandto particularly' viding a holder which allows a vibratory 7o 2o adaptthe same for adjustment with reference movement of the rear axle withreference to to a diagonally-reversible scraper-blade; to the body-frameand in arranging said holder permit the axle to be alternately swungabout so that it may be shifted from side to side of a pivotal' centerand shifted longitudinally the body-frame; in providing means forwithout lost or waste motion; to arrange simswinging the axle about itspivotal connec- 75 25 ple, quick-acting, and convenient means for tionfor shifting said pivotal connection across f swinging a rear axle abouta vibratory centhe body-frame for normally locking the axle ter, andalso for shifting said vibratory center in Vswinging adjustment and theholder in with reference to the body-frame; to provide shiftingadjustment, and in such other feasimple and reliable means forconnecting to tures as are hereinafter set forth. 8o 3o the body-framean axle capable of both vi- In the accompanying drawings, Figure l isbratory adjustment and lateral shifting ada plan of a road-workingmachine embodyjustment,`and to provide certain further novel ing ourinvention. Fig. 2 is a plan of the and improved details, as arehereinaftermore rear-'portion of the same. Fig. 3 is a view on fully setforth. the line 3 3 of Fig. 2, showing the rear axle 85 3 5 j In aroad-working machine characterized in section. Fig. 4 is a transversesection of by our Ainvention the rear axle, which is relathe machine on'the line 4 4 in Fig. 2. Fig. tively longer than the front axle, iscapable 5 is a section on line 5 5 in Fig. 2. Figs. 6, ofindependenthorizontal swinging adjust- 7, and S are plan views of somuch of the mament andb longitudinal adjustment, and is Vchine as isnecessary to illustrate the advan- 9o 4o vibratorilyheld byaholder orbearing,which, tages of its construction.

in turn, has a shifting connection with the For the purposes of ourinvention any body-frame.' Said rear axle is arranged for suitableconstruction of body-frame may be vibratory motion by reason of thepivotal employed. The scraper-blade can be conconnection o'f itsholderor bearing, and said nected with the body-frame in any preferred 95 45bearing is also arranged for end thrust or manner, so as to beadjustable horizontally adjustment across the body-frame of the maandvertically, and arranged to be swung chine independent of said vibratoryor swingabout a point between its ends so that it may ing'movement ofthe axle. By such arrangebe placeddiagonally to the line of progresment'the vibratory holder may be so shifted sion with either end in advance.In the pre- Ioo 5o as to bring either one of the rear wheels into ferredarrangement (shown in Fig. l) the bodyalinement with its companion frontwheel; frame is supported by the pivoted short front a l temes axle 2and long rear axle 3. The scraperblade 6 is'arranged to extend acrossthe width of the machine, and is suspended below the body-fraine bysuitable raising and lowering devices operated by levers 5. The raisingand lowering mechanism is so arranged that the blade may be swung bodilyfrom side to side of the machine; and for the purpose of thus swingingthe blade it is drawn by the horizontally-swinging draft-bar 4E, whichis pivotally secured at the forward end of the machine and swung by thelever 7.

The blade may be connected in any suitable way for diagonal adjustment,although as a preferred arrangement it is attached to the circle orturn-table 8, having at its center a pivotal connection with thehorizontallyswinging draft-bar and provided with the segment-gear 9.l/Vhen it is desired to swing the scraper-blade about its pivotalconnection, the hand-wheel shaft 10 is rotated, so as to turn thesegment-gear 9 and thereby bring about the required adjustment of theblade.

In order to resist the side draft resulting from the resistance offeredby the soil to the scraper-blade, it is desirable to swing the rear axlewith reference to the horizontal angle of the blade relatively to theline of progression. W'ith such an arrangement as we propose, either endof the axle may be swung forward, sometimes one and sometimes the other,according to the nature of the work to be done. Vhile an end adjustmentof the axle can also be used to some advantage as a means for overcoming side draft, we iind it desirable to adjust the axle as aforesaid, inorder to bring the wheels at one side of the machine in alinement and toextend the axle at one or the other side of the machine after it hasbeen set oblique to the line of progression. As a simple and efficientmeans of accomplishing this we construct the holder for the rear axlerigid therewith, and provide it with both a pivotal and shiftingconnection with the body-frame instead of pivotally connecting the axleto said holder and then providing the latter with said shiftingconnection. Hence the holder or sleeve 12 is provided with pivots orstuds 13, which permit vibratory movement of the axle; and these pivotsin turn may slide in the guideways 14 in the body-frame, allowing an endthrust or adjustment of the holder, and consequently of the axle.

For shifting said holder along the guideways 14 we select the simplemechanism shown in Figs. 2 and 5, consisting in the chain 15, secured tothe bearing and wound about the rotary drum 16. As a means for normallylocking said drum so as to hold the bearing in adjustment, a toothedwheel 17, mounted on the drum-shaft 21, is arranged to be engaged by thecatch or trip 18, having the spring 2O pressing against the arm orextension 19. The operator, standing upon the platform 22, may shiftsaid holder to one side of the machine or the other by disengaging thecatch 18 from the toothed wheel v17 and turning the hand-wheel 23 untilthe desired adjustment is secured.

For swinging the rear axle about its pivotal connection any suitabledevice may be employed which is capable of operation, irrespective ofthe position of the shifting holder with regard to the body-frame of themachine.

As a preferred arrangement, the axle 3 is grasped by the collars 24E atpoints where a sufficient leverage may be obtained for swinging it insuch a manner that the axle is free to slide through them when moved bythe shifting bearing. These collars may be operated through the links 26by the levers 25, both of which may be grasped by the operator standingupon the platform 22. Each lever is desirably provided with a springattachment 27, which normally engages with the toothed segment 28 forholding the axle in pivotal adjustment. Obviously, by this arrangement,the shifting holder may be adjusted so as to give the axle any desiredend thrust, and an independent swinging or vibratory motion may be givento the axle irrespective of the position of its shifting holder.

Referring to Figs. 6, 7, and 8, it will be seen that the companionwheels on either side of the machine may be brought into alinement byinclining the rear axle to the body-frame, as in Fig. 6; that theshifting holder may then be adj usted with reference to the body-frame,so as to bring the latter into a position substantially parallelto theline of progression, as in Fig. 7. In Fig. 8 is illustrated the range ofadjustment obtainable in our machine, whereby the wheels may beaccommodated to selected relations with furrows or the like, or by whichthe scraper-blade maybe arranged to deposit soil lifted by it in desiredlocalities.

That we claim as our invention is- 1. In a road-working machineconstructed with a wheeled body-frame and a diagonallydisposedscraper-blade arranged between the front and rear wheels, the rear axlepivotally connected with the body-frame, and the pivotal connectionsupported for ashifting or sliding sidewise movement with reference tothe body-frame; and means for adjusting the axle in either a pivotal orsidewise manner independently, whereby the axle can be proj ectedlaterally from the body-frame by a relative adjustment between thelatter and the pivotal connection, and also whereby the axle may beswung into an oblique position by moving it about its pivotal connectionirrespective of the position of the same with reference to thebody-frame, substantially as set forth.

2. In a road-working machine constructed with a wheeled body-frame and adiagonallydisposed scraper-blade arranged between the front and rearwheels, the rear axle rigidly connected with a holder or bearing whichis supported by the body-frame forboth pivotal and sidewise movementwith reference thereto, the said axle being provided with means foreffecting the pivotal adjustment,

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and the holder with means for causing the motion; anda couple of leversconnected with Io sidewise motion, substantially as set forth. saidholders and arranged to effect the pivotal 3. In a road-Working machine,the combiadjustment of the axle, substantially as set nation With theaxle having a pivotal eonneeforth.

tion with the body-frame, which connection `MORTON G. BUNNELL. has inturn a sideWise sliding or shifting mo- CHARLES Gr. PAGE. tion withreference to said body-frame, of a Witnesses:

couple of holders engaging the axle at either A. MILLER BELFIELD,

side of the pivotal point to permit its sideWise MARGARET M. WAGNER.

